As a solo female traveler, you can visit Canary Islands with a sense of security. Like many places in Spain, it's generally considered safe with low crime rates. However, it's always a good idea to be mindful of your surroundings, especially during the evening in less crowded areas. Petty crimes like pickpocketing and bag snatching can occur, particularly in touristic spots. On the positive side, locals are generally helpful and respectful. Taking normal precautions should ensure a worry-free trip.